Ventilator.



G. F. DICKERSON.

VENTILATOR.

APPLICATION FILED III II.2I` I9I6.

1,243,146. Patented OCI. .16, 1917..

animan sfrafrns ra'rnn'r ernten.

GEORGE F. DICKERSON, OF DETROIT, vMIGIIICir-AIN'.

VENTILATOR.

To alli/17mm it may concern.'

Be it known that I, GEORGE F. DIoKnRsoN, a citizen of the United States of America, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Ventilators, of which the following-is a specification, reference being had therein to the accompanying drawings.

This invention relates to ventilators and the principle of my invention may be embodied in window, cellar, car and building ventilators.

The primary object of my invention is to provide a novel ventilator that may be easily built into a wall and the ventilator includes baiiie members or plates which insure an indirect ventilation without a draft' or current of air in either direction which would tend to unduly exhaust air from a compartment or flood the same with cold air.

Another object of my invention is to provide a wall ventilator by which fresh dry air can be admitted to a part of a building when the weather is seasonable and that may be closed entirely when the weather is cold or damp, and provision is also made for excluding fiies, small insects and animals, particul arly when the ventilator is built into a cellar wall, for instance as an air intake to a hot air furnace or other heating apparatus. A further object of my invention is to provide a telescopic or extensible ventilator that may -be built into walls of various widths, the vventilator including novel baffi@ members or plates atl the outer end 'thereof and a register, grating orclosure members at the inner end of the ventilator. A still further object of my invention is to provide a ventilator of the above type wherein the parts are constructed with a view of reducing the cost of manufacture and at the same time retain the features by which simplicity of construction, durability and ease of assembling are secured, and with the above and other objects in view my invention resides in the,V novel construction to be hereinafter described and then claimed.

Reference will now be had to the drawing, wherein- Figure 1 is a longitudinal horizontal sectional view of a ventilator in accordance with my invention;

Specification of Letters Patent.

Patented Oct. 16, 1917.

Fig. 2 is a vertical cross sectional view of thesame, and

Fig. 3 is a plan of a telescopic or extensible ventilator mounted in a wall or other support.

The ventilator comp-rises a rectangular metallic shell having the side walls 1 and top and bottom walls 2 with the ends of said shell open. The outer end of the shell is provided with a marginal flange 3 disposed at right angles to the walls of the shell and connected to this flange by rivets -1 or other fastening means is a rectangular frame 5, preferably made of one or more Z bars providing outwardly extending flanges 6 and inwardly projecting flanges 7 Interposed between the flanges 3 of the shell and the flanges 6 of the frame 5 are the marginal edges of an inner baffle plate or member 8 provided with top and bottom openings 9 and a central longitudinal outwardly projecting rib or baiiie 10. The openings 9 and the baiiie 10 correspond in length to the shell and the baffle 10, which is pressed out from the plate or member 8 and angular in cross section, adds rigidity to the member or plate.

lNhen the ventilator is used in connection with a cellar wall or any place where flies or insects are liable to enter the ventilator, a screen 11 may have the marginalv edges thereof anchored between the iianges 3 of the shell and the baffle member 8, thus precluding any possibility of iiies or other insects passing through the openings 9 into the shell.

Riveted or otherwise secured to the inwardly projecting flange 7 and the frame l5 is an intermediate balfle member or plate 12 having a central longitudinal slot or opening'le in proximity to the ridge or baffle 10, and the marginal edges of the opening or slot 13 are bent inwardly, as at 14, with the ends of the bent in portions engaging the 'Iianges 7 at the sides of the ventilator structure, thus properly centering the intermediate baffle plate or member 12 relative to said frame.

The same fastening means for the intermediate baffle member or plate 12 is employed for holding an outer baffle member or housing 15, in parallelism with the inner baffle member or plate 12. The housing 15 is made of sheet metal with the ends thereof stepped to rest on the member or plate 12 and to entend" ontothe' outwardly eX-v tending flanges 6 of the frame 5, adjacent the side walls 1 of the ventilator. The rivets i may eoperate with fastening means 16 of the baffle member 12 in holdii'igV the housing A15 relative to the `frame 5. The

top and bttomiof the housing 15 a're'opeii and in said housings are vertieally disposed baiie members 17, in the form of 'Z bars connected to the innenwallof, the housing 15 and to the intermediate bafH-e member 12 said verticallyf disposed baffle members 17 beingj in spaced relation, corresponding in' or other fastening means' is a register frame or grate 2O having interstices 21.

Trunnioned orotherwise mounted between the sidewalls 1. of the shell, to swing to and from the top and bottom 'walls 2,l are elosures or. doors 22"adapted to have the free edges theieofnneet at the inner side of the grate 20 and lose said grate. Each door has afpivoted notched arni 23 extending through interstices of the grate'and it is through the medium ofthesel notched arms that the closures 22 can be adjusted relative to the' grate and; held `in ajdju'sted position. Vhen the ventilator structure is built into a wall, as shown in Figs. 1 and 2, it is impossible for wind or a current of airtravel-` ing -in a lateral directionl to 'enter the upper and'lower open end of' the housing,15 and' the/effect of any suction produced by pass'- ing currents o'f air is broke-n'up or retarded by the. intermediate and inner baffle memj bers 12andg8. The" inner and intermediate baffle members provide ank indirect or tortuous passage into and' out of the shelll and by having the o'penings) staggered relative to the openings orl slots I13, there is suflicient retardationofjair to prevent the settingjup ofgexcessive current that wouldtendto rap-` idlyexhaust warmfair ,from a compartment or'lood a compartment with coldair. flow-v ever, the register frame or closures will 'permit' of theam'ount ofl air, passing throughV the ventilator to be regulated, butin some In Fig. 3 of the drawings Washington, DC.

Y instances the closuremay be dispensed with,

trated a slight modiiicatioiiofA my invention, wherein the shell is composed of two telescopic mem'bers 24C and'25 and these members may be' adjusted to properly position the' inner and outer ends 'of the ventilator relative to walls of the various widths. The members 24"and 25 may be connected tie" rods 2.6 and otherwise the inner and outer ends of the ventilator are identical with the preferred form of construction.

Thile'l in the ydrawi gs, ,there are illus' trate'dy the preferred"embodiments of.' invention, it is to. be Aunderstood that the struc#` tural elements arey sus,Cef'ptibleA to -siieh changes, in size,., shape' and'mannerl as'f-v semblage, as' fallwithin the scope l ofI they appended jclairns'. t,

Vhat I claim is 1. A ventilator comprisingafshell, afrane I carriedby the end'there'o'f, an inner b'aiiie member between saidnshell'and said frameand having longitudinal top and bottomv openings with a central projectingand loin#V gitudinally disposed baiilefrib, aii interi mediate baie member on'saidfi'n'me,` having, a longitudinal,openingat the baffle ribj'of, saidninner bafile member ,with theniai'ginal.- edges of the opening bent' inptow'ard, said f bai'iie rib, and ya housing on said framefin communication Iwith *said shell and having the upper and lower yends thereof open. 2. Aventilator .comprising a sliellrhaving" anI o'utstandingg'flangey aty oneen'd 'thc-bre'of, l a framfe having inwardly'land outwardly pro-I' jeenfigfnnges, an inner be t members; Cured between the Hz'inges of; said shell and l the outwardly projecting flanges ofl saidl frame, saidA inner balie' member longitudinal top yandnbo't'to'nil openings with a central .projeot'ing v and longitudinally dis# l posedbaii'le rib that hasits ends'abutting said frame and in prXimity to the inwardly projecting iiange thereof, ,anA intermedia'te baffle member von the; inwardly projeeting flange of' said framefand having a, longitudinal opening at'the baffle rib of saidv inner baiiie'meniber, and a' housing on',AV said frame in communication with said shell and, havingthe upper and lower ends" thereofv open.v v Y., ,Tw l y* In .testimony whereof Iy affix' my signature inthe presence of two witnesses.'

GERGE F. DICKERSON."

lVitnefs's'esy j f KARL H.; Burnet ANNM. Donn". 

